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  1. xtrasaucy

    Mathematics: Post your doubts here!

    PLEASE HELP and THANKS !! The random variable X has a normal distribution with mean μ and standard deviation σ. (i) if 2μ = 1.5 σ, find P(X<3μ). (ii) if P(X>1/3μ ) =0.7257, express μ in terms of σ.
  2. xtrasaucy

    Mathematics: Post your doubts here!

    Whats the code for this paper?
  3. xtrasaucy

    Mathematics: Post your doubts here!

    Area of triangle AOB = 1/2 In the guestion they tell us that AOB and AXB are equal so.. Area of triangle AOB = 1/2 r^2 sin(theta) Area of segment AXB = 1/2 r^2 (theta) - 1/2 r^2 sin(theta) Now since their areas are equal : 1/2 r^2 sin(theta) = 1/2 r^2 (theta) - 1/2 r^2 sin(theta) which...
  4. xtrasaucy

    Mathematics: Post your doubts here!

    can someone please send me a link to the MARK SCHEME of 9709/11/m/j/16
  5. xtrasaucy

    Mathematics: Post your doubts here!

    Guys I need help please ! can someone solve 9709/62/m/j/12 question 7 I am lost and stuck I checked the mark scheme but it didn't make sense to me please solve and send a picture. thanks in advance !!
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